scholarly journals Systematics and phylogeography of the Brazilian Atlantic Forest endemic harvestmen Neosadocus Mello-Leitão, 1926 (Arachnida: Opiliones: Gonyleptidae)

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0249746
Author(s):  
Daniel Castro-Pereira ◽  
Elen A. Peres ◽  
Ricardo Pinto-da-Rocha
Keyword(s):  
Atlantic Forest ◽  
Reproductive Strategies ◽  
Evolutionary History ◽  
Taxonomic Revision ◽  
Brazilian Atlantic Forest ◽  
Nuclear Markers ◽  
Physiological Constraints ◽  
Male Polymorphism ◽  
Female Holotype ◽  
Molecular Phylogenetic

Neosadocus harvestmen are endemic to the Southern Brazilian Atlantic Forest. Although they are conspicuous and display great morphological variation, their evolutionary history and the biogeographical events underlying their diversification and distribution are still unknown. This contribution about Neosadocus includes the following: a taxonomic revision; a molecular phylogenetic analysis using mitochondrial and nuclear markers; an investigation of the genetic structure and species’ diversity in a phylogeographical framework. Our results show that Neosadocus is a monophyletic group and comprises four species: N. bufo, N. maximus, N. robustus and N. misandrus (which we did not find on fieldwork and only studied the female holotype). There is astonishing male polymorphism in N. robustus, mostly related to reproductive strategies. The following synonymies have resulted from this work: “Bunoweyhia” variabilis Mello-Leitão, 1935 = Neosadocus bufo (Mello-Leitão, 1926); and “Bunoweyhia” minor Mello-Leitão, 1935 = Neosadocus maximus (Giltay, 1928). Most divergences occurred during the Miocene, a geological epoch marked by intense orogenic and climatic events in the Brazilian Atlantic Forest. Intraspecific analyses indicate strong population structure, a pattern congruent with the general behavior and physiological constraints of Neotropical harvestmen.

scholarly journals Systematics and phylogeography of the Brazilian Atlantic Forest endemic harvestmen Neosadocus Mello-Leitão, 1926 (Arachnida: Opiliones: Gonyleptidae)

2021 ◽  
Author(s):  
Daniel Castro Pereira ◽  
Elen A. Peres ◽  
Ricardo Pinto-da-Rocha
Keyword(s):  
Atlantic Forest ◽  
Reproductive Strategies ◽  
Evolutionary History ◽  
Taxonomic Revision ◽  
Brazilian Atlantic Forest ◽  
Nuclear Markers ◽  
Physiological Constraints ◽  
Male Polymorphism ◽  
Female Holotype ◽  
Molecular Phylogenetic

Neosadocus harvestmen are endemic to the Southern Brazilian Atlantic Forest. Although they are conspicuous and display great morphological variation, their evolutionary history and the biogeographical events underlying their diversification and distribution are still unknown. This contribution about Neosadocus includes the following: a taxonomic revision; a molecular phylogenetic analysis using mitochondrial and nuclear markers; an investigation of the genetic structure and species' diversity in a phylogeographical framework. Our results show that Neosadocus is a monophyletic group and comprises four species: N. bufo, N. maximus, N. robustus and N. misandrus (which we did not find on fieldwork and only studied the female holotype). There is astonishing male polymorphism in N. robustus, mostly related to reproductive strategies. The following synonymies have resulted from this work: Bunoweyhia variabilis Mello-Leitão, 1935 = Neosadocus bufo (Mello-Leitão, 1926); and Bunoweyhia minor Mello-Leitão, 1935 = Neosadocus maximus (Giltay, 1928). Most divergences occurred during the Miocene, a geological epoch marked by intense orogenic and climatic events in the Brazilian Atlantic Forest. Intraspecific analyses indicate strong population structure, a pattern congruent with the general behavior and physiological constraints of Neotropical harvestmen.

Taxonomic revision of the Brazilian Atlantic Forest Atractus (Reptilia: Serpentes: Dipsadidae)

Zootaxa ◽  
2010 ◽  
Vol 2364 (1) ◽  
pp. 1 ◽  
Author(s):  
PAULO PASSOS ◽  
RONALDO FERNANDES ◽  
RENATO S. BÉRNILS ◽  
JULIO C. DE MOURA-LEITE
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Neotropical Region ◽  
Brazilian Atlantic Forest ◽  
Mountainous Regions ◽  
Species Groups ◽  
Three New Species ◽  
Maxillary Dentition

Dipsadine snakes of the genus Atractus are endemic to the Neotropical region, occurring from Panama to Argentina. Currently, the taxonomic status of most species of the genus is unclear and previous attempts of taxonomic revisions have been local in scale. In this paper we evaluate the taxonomic status of the Brazilian Atlantic Forest species of Atractus based on meristic, morphometric, maxillary dentition, and hemipenis characters. Quantitative and qualitative analyses suggest the recognition of one new species (A. caete sp. nov.) from the state of Alagoas, another (A. francoi sp. nov.) from the mountainous regions of the states of Rio de Janeiro and São Paulo, and the synonymy of A. kangueryensis with A. thalesdelemai. Specimens previously assigned to A. taeniatus in Argentina and Brazil are here considered A. paraguayensis. A key to the Atlantic Forest Atractus is provided and three new species groups are proposed for some cisAndean Atractus, mainly on the basis of hemipenial morphology: the A. emmeli, A. maculatus, and A. pantostictus species groups.

When phylogeography meets niche suitability to unravel the evolutionary history of a shrub from the Brazilian Atlantic Forest

2020 ◽  
Vol 195 (1) ◽  
pp. 77-92
Author(s):  
Geraldo Mäder ◽  
Priscilla M Zamberlan ◽  
Ana Lucia A Segatto ◽  
João R Stehmann ◽  
Sandro L Bonatto ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Climate Changes ◽  
Brazilian Atlantic Forest ◽  
Niche Modelling ◽  
Nuclear Markers ◽  
Pleistocene Climate ◽  
History Of ◽  
Demographic Methods ◽  
Climate Influences ◽  
The Impact

Abstract The Brazilian Atlantic Forest (BAF) is one of the most impacted biomes in the world, and in this region, there are several examples of the effects of Pleistocene climate changes among the species found there. Athenaea fasciculata (Solanaceae) is a forest component distributed mainly throughout the BAF extension. Here, we investigated the genetic diversity and population structure of A. fasciculata based on plastid and nuclear markers, aiming to better understand the impact of Pleistocene climate changes on BAF vegetation. We used population genetics, demographic methods and ecological niche modelling coupled to an evolutionary approach to describe the species distribution across time. The phylogeographic analysis of A. fasciculata indicated that Pleistocene climate changes played an important role in its evolution. The species is structured in two groups of populations that emerged from different refugia and were under different climate influences, supporting previously proposed connections between the Atlantic and Amazon Forests, the two most important Neotropical rainforests.

scholarly journals Taxonomic revision of the Canthidium Erichson, 1847 species of the gigas group (Coleoptera, Scarabaeidae, Scarabaeinae)

2019 ◽  
Author(s):  
Edrielly Carvalho de Santa ◽  
Thaynara L. Pacheco ◽  
Fernando Z. Vaz-de-Mello
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
French Guiana ◽  
Taxonomic Revision ◽  
Brazilian Amazon ◽  
Species Group ◽  
Identification Key ◽  
Brazilian Atlantic Forest ◽  
Brazilian Cerrado ◽  
Three New Species

The gigas species group of the subgenus Canthidium (Neocanthidium) is defined and described. This species group is composed of three described species [C. gigas Balthasar, 1939, Brazilian Atlantic Forest, including intrusions into Cerrado, C. bokermanni (Martínez et al., 1964), Chaco and western Cerrado in Brazil, Bolivia, Paraguay, and Argentina, and C. kelleri (Martínez et al., 1964), Brazilian Cerrado and neighbouring open areas] and three new species: Canthidium stofeli sp. nov. from the western and southern regions of the Brazilian Amazon, Canthidium feeri sp. nov. from French Guiana, and Canthidium ayri sp. nov. from the Brazilian Atlantic Forest. We present descriptions and redescriptions, illustrations, an identification key and comments on the distributions of the species of the gigas group.

scholarly journals Octomeria lilliputana (Orchidaceae), a new species from Brazilian Atlantic Forest, State of Paraná, Brazil

Phytotaxa ◽  
2013 ◽  
Vol 105 (2) ◽  
pp. 39 ◽  
Author(s):  
WELLINGTON FORSTER ◽  
VINICIUS CASTRO SOUZA ◽  
FÁBIO DE BARROS
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Brazilian Atlantic Forest ◽  
Data Deficient ◽  
A New Species ◽  
Forest Biome

While conducting a taxonomic revision of Octomeria, a new species from the Atlantic Forest biome, in Paraná State, Brazil was found. The species is here described and illustrated as Octomeria lilliputana. Based on morphological characters, this species belongs to Octomeria section Octomeria subsection Octomeria. The species is provisionally ascribed to the Data Deficient (DD) category of IUCN.

scholarly journals A morphometric and molecular phylogenetic analysis of the African orchid genus Stenoglottis (Orchidaceae: Orchidoideae)

2020 ◽  
Vol 193 (3) ◽  
pp. 340-362 ◽  
Author(s):  
Dean P Phillips ◽  
Benny Bytebier
Keyword(s):  
Sequence Variation ◽  
Phylogenetic Analyses ◽  
Taxonomic Revision ◽  
Plastid Dna ◽  
Species Level ◽  
Multivariate Morphometrics ◽  
Species Boundaries ◽  
Nuclear Markers ◽  
Molecular Phylogenetic ◽  
Small Genus

Abstract Stenoglottis is a small genus of forest orchids endemic to continental Africa. Nine taxa have so far been described, but species boundaries in the genus are problematic and several of these taxa are not widely accepted. In this study, taxon boundaries were investigated by means of a combination of morphometric and phylogenetic analyses, with the aim of resolving species-level relationships and identifying practical diagnostic characters. Sequence variation was low, particularly in plastid DNA (atpI-atpH), and Bayesian inference and maximum likelihood analyses of nuclear markers (ITS and ETS) did not resolve all of the putative taxa. Multivariate morphometrics (PCA, PCoA, cluster analysis) likewise did not support the recognition of all described Stenoglottis taxa, but they reliably distinguished some taxa that DNA data did not. Combined morphological and phylogenetic evidence supports the delimitation of five species and two varieties, for which characteristics of floral spurs, labella, leaves, bracts and auricles provide reliable diagnostic traits. These findings will form the basis of a taxonomic revision in which the proposed changes will be formalized.

scholarly journals Taxonomic revision of Brasiloniscus (Oniscidea, Pudeoniscidae) with description of a new species

2018 ◽  
Author(s):  
Giovanna Monticelli Cardoso ◽  
Ivanklin Soares Campos-Filho ◽  
Paula Beatriz Araujo
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Type Species ◽  
Taxonomic Revision ◽  
The State ◽  
Brazilian Atlantic Forest ◽  
A New Species

The Neotropical genus Brasiloniscus, erected by Lemos de Castro (1973), is revised and validated herein. The genus was originally described including two species, B. maculatus and B. verrucosus, but no type species was designated. According to § 13 of ICZN (1999) the name of the genus is therefore unavailable. Both species are redescribed, and B. maculatus is designated as the type species of the genus. The genus name will thus be available for the systematics of Oniscidea. In addition, a new species, B. littoralis gen. et sp. nov., is described based on material from the Brazilian Atlantic Forest from the state of Rio de Janeiro.

Phylloporia spathulata sensu stricto and two new South American stipitate species of Phylloporia (Hymenochaetaceae)

Phytotaxa ◽  
2016 ◽  
Vol 257 (2) ◽  
pp. 133 ◽  
Author(s):  
Valéria Ferreira Lopes ◽  
Gerardo Lúcio Robledo ◽  
Mateus Arduvino Reck ◽  
Aristóteles Góes Neto ◽  
Elisandro Ricardo Drechsler-Santos
Keyword(s):  
Atlantic Forest ◽  
Morphological Analysis ◽  
New South ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Sensu Stricto ◽  
Type Material ◽  
South American ◽  
Southern Brazil ◽  
Molecular Phylogenetic

During a taxonomic revision of species belonging to Phylloporia, some collections from the Atlantic Forest of southern Brazil previously determined as P. spathulata had morphological discrepancies in comparison to the type material of this taxon. Both molecular phylogenetic and morphological analysis revealed them to be two distinct species, described here as Phylloporia elegans sp. nov. and P. nodostipitata sp. nov. They mainly differ from P. spathulata by having reviving basidiomata with smaller pores and basidiospores. Phylloporia nodostipitata develops caespitose basidiomata with a knotted and flexuous stipe and a tomentose pileal surface. Phylloporia elegans develops solitary basidiomata with a cylindrical and straight stipe and a plagiotrichoderm pileal surface. Both species are described, illustrated, discussed and compared with Phylloporia spathulata based on a study of the type. Phylloporia spathulata sensu stricto is presented based on its basionym type material.

The centipede genus Otostigmus Porat in Brazil: Description of three new species from the Atlantic Forest; a summary and an identification key to the Brazilian species of this genus (Chilopoda, Scolopendromorpha, Scolopendridae, Otostigminae)

Zootaxa ◽  
2012 ◽  
Vol 3280 (1) ◽  
pp. 1 ◽  
Author(s):  
AMAZONAS CHAGAS-JÚNIOR
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
The State ◽  
Junior Synonym ◽  
Identification Key ◽  
Nominal Species ◽  
Brazilian Atlantic Forest ◽  
Three New Species ◽  
First Time ◽  
New Distribution

Three new species of Otostigmus Porat, 1876 from Brazilian Atlantic Forest are described. Otostigmus beckeri sp. n. andO. lanceolatus sp. n. are described from the state of Bahia and O. giupponii sp. n. from the state of Espírito Santo. InBrazil, the otostigmine scolopendrid genus Otostigmus comprises 22 species. A summary of Brazilian Otostigmus speciesis presented with new distribution records, taxonomic remarks when appropriate and an identification key. Otostigmus sul-catus Meinert, 1886 is recorded for the first time from Brazil; the Andean Otostigmus silvestrii Kraepelin 1903, previouslyrecorded from Brazil, is here considered not to be present in this country. Eight nominal species are regarded here as newsynonyms. Five of them—Otostigmus pradoi Bücherl, 1939, O. longistigma Bücherl, 1939, O. longipes Bücherl, 1939,O. langei Bücherl, 1946 and O. dentifusus Bücherl, 1946—are based on females of O. tibialis Brölemann, 1902. O. latipesBücherl, 1954 is conspecific with and is considered a junior synonym of O. sulcatus Meinert, 1886; O. limbatus diminutusBücherl, 1946 is a junior synonym of O. limbatus Meinert, 1886 and O. fossulatus Attems, 1928 is a junior synonym of O. goeldii Brölemann, 1898. A lectotype is designated for O. goeldii.

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